From: Andre Vieira <andre.simoesdiasvieira@arm.com>
Date: Mon, 27 Apr 2020 13:54:46 +0000 (+0100)
Subject: arm: Fix bootstrap failure with rtl-checking
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6b6a77d25e83e071ba5d08648c5bd3953d8a0c03;p=gcc.git

arm: Fix bootstrap failure with rtl-checking

The code change that caused this regression was not meant to affect neon
code-gen, however I missed the REG fall through.  This patch makes sure we only
get the left-hand of the PLUS if it is indeed a PLUS expr.

gcc/ChangeLog:
2020-04-27  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/arm/arm.c (output_move_neon): Only get the first operand if
	addr is PLUS.
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bd5e95a9133..0027071f717 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2020-04-27  Andre Vieira  <andre.simoesdiasvieira@arm.com>
+
+	* config/arm/arm.c (output_move_neon): Only get the first operand if
+	addr is PLUS.
+
 2020-04-27  Felix Yang  <felix.yang@huawei.com>
 
 	PR tree-optimization/94784
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 0151bda90d9..74454dddbb9 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -20145,7 +20145,8 @@ output_move_neon (rtx *operands)
 	}
       /* Fall through.  */
     case PLUS:
-      addr = XEXP (addr, 0);
+      if (GET_CODE (addr) == PLUS)
+	addr = XEXP (addr, 0);
       /* Fall through.  */
     case LABEL_REF:
       {